Home / 9,121.73-13,683.26-3,278.39

Finding the Fourth Proportional to 9,121.73, 13,683.26 and 3,278.39

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Solution

The fourth proportional to 9,121.73, 13,683.26 and 3,278.39 is: 4,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.73 : 13,683.26 = 3,278.39 : x
  2. Step 2: Convert to fraction form
    9,121.73/13,683.26 = 3,278.39/x
  3. Step 3: Cross multiply
    9,121.73x = 13,683.26 × 3,278.39
  4. Step 4: Simplify right side
    9,121.73x = 44,858,977.94
  5. Step 5: Solve for x
    x = 44,858,977.94/9,121.73
  6. Step 6: Final answer
    x = 4,917.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.